What does the term "menstrual cycle" specifically refer to?

How does a bone marrow transplant treat sickle cell disease?

Which of the following is true of vegans?

Andra has a family history of osteoporosis. her doctor advises her to eat foods rich in calcium. which foods should she add to her diet? a. fruits, especially grapes and berries b. unsaturated fats like olive and soybean oil c. beet greens, broccoli, and cheese